Handlebar cover



FIG. 1 is a perspective view of the handlebar cover, showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a plan view of a handlebar cover showing my new design in a configuration of use stretched onto the handgrip of a handlebar of an exercise device.

The structure shown in dashed lines represents unclaimed structure, is shown for exemplary purposes only, and does not form part of the claimed design. 

CLAIM The ornamental design for a handlebar cover, as shown and described. 